======================================================= t1019.dat Number of records in file: 5313 Record 1: 1976 9 21 -- 23:30:00 obgrav = 80330.6 obmag = 0 cdm = 0 Record 5313: 1976 10 10 -- 13:35:00 obgrav = 80298.5 obmag = 0 cdm = 0 Min/Max observed gravity (milligals): 79.0 80364.1